Silkworm (missile)

SY/HY missiles
SY-1 missile
TypeAnti-ship cruise missile
Place of originChina
Production history
Manufacturer

The SY (Chinese: 上游; pinyin: Shàngyóu; lit. 'Upstream'), and HY (Chinese: 海鹰; pinyin: Hǎiyīng; lit. 'Sea Eagle') series were early anti-ship cruise missiles (ASCM) developed by the People's Republic of China from the Soviet P-15 Termit missile. They entered service in the late 1960s[2] and remained the main ASCMs deployed by the People's Liberation Army Navy through the 1980s. The missiles were used by the PRC and export customers to develop land-attack missiles.[3]

The name Silkworm is popularly used for the entire SY and HY family. As a NATO reporting name, it applies only to the land-based variant of the HY-1.[4]